/Engine/Plugins/Runtime/OpenXR/Source/OpenXRHMD/Public/IOpenXRExtensionPluginDelegates.h
[FApplyHapticFeedbackAddChainStructsDelegate](API\Plugins\OpenXRHMD\FApplyHapticFeedbackAddChainStru-) & GetApplyHapticFeedbackAddChainStructsDelegate()